General config Q...

[helix66 10+ year member]

I am in the process of replacing my old clarion HU from 1995 and it appears that it was using the rear outputs, not sure for what though. When I got the truck it had a set of MB-quart separates in the front and a bazooka tube in the rear (I know, they are dated and crappy but it was supposedly a good system in 95'). Also in the rear quarters are an ADC power plate amp and two MB-quart X-overs.

I thought that the amp was three channel and somehow the sub was running off that. I'm just going to connect up the new hu (alpine 9885) in the same way that the old hu was, but I was just curious if anyone could enlighten as to what the thinking was.....w/o me tracing all the wires all over! I'm assuming that this was a common hook up scheme that was done a lot in the "olden days"!

Thanks for any info!

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[JimJ 5,000+ posts]

Something like this?

http://www.bcae1.com/trimode.htm

Tri-mode wiring used to be popular...not as common anymore.

 

[Immacomputer 10+ year member]

I use tri-mode in my room. 100rms for my sub and 25rms for my midbass.

 

[helix66 10+ year member]

JimJ, I was thinking it might be something like that, but there is a set of rca leads running out of the hu to the amp which would make sense for tri-mode. What I find odd is that the rear speaker wires from the hu are also connected to what looks like some old/OEM-junky wire. Not sure what they are all about.

Ideally I should re do the whole system, but I just don't have the money to get better gear, and the sq seemed ok for me. I've never heard a really amazing system though.

To get some rear fill in my suv I bought two pairs of polk 5.25" components and used an old sony 4 channel amp to run the 4 additional pairs....I used the rear rca leads of hu.

I'm wondering if that caused any problems.....using the rear hu speaker outputs AND the rear rca outputs.

 

[JimJ 5,000+ posts]

Two pairs of rear fill? Ew //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

 

[helix66 10+ year member]

It's a pathfinder, I added a pair in the rear doors and also in the rear headliner (an oem location). If I had found a place like this earlier I probably would have done everything differently.....OOoooopps!

Along the lines of error, I'm guessing it is a bad thing to to try to use both the rear rca's AND the rear speaker leads from the hu?